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https://www.readbyqxmd.com/read/29241047/knee-misalignment-and-exercise-amount-predictive-value-for-chronic-low-back-pain-in-young-competitive-athletes
#1
Andreas Rosenhagen, Daniel Niederer, Lutz Vogt, Winfried Banzer
Sports medical examinations of juvenile athletes provide an opportunity for preventive measures against sports-related diseases. Determining the leg axis deviation as a risk factor for future constraints may offer approaches for such measures. Data were obtained from 789 youth athletes: 166 with coronal plane knee misalignment and 623 without. After a seven-year period, 64 participants (m: 33, f: 31) from both groups were reassessed for the incidence of nonspecific chronic low back pain (CLBP). To distinguish participants with increased risk for CLBP, contingency tables for comparison of expected and joint frequency distribution testing and receivers operating characteristic (ROC) analyses for the weekly training time were conducted...
December 11, 2017: Human Movement Science
https://www.readbyqxmd.com/read/29239994/effects-of-judo-training-on-bones-a-systematic-literature-review
#2
Simone Ciaccioni, Giancarlo Condello, Flavia Guidotti, Laura Capranica
The aim of this study was to provide a systematic literature review on the osteogenic effects of judo (PROSPERO: CRD42016041803). The online search was conducted according to the inclusion criteria: observational studies and clinical/interventional trials in English from inception to June 2016; bone health, mineral density (BMD), diameters, impact force and turnover markers (BTM) outcomes. Thirty-four studies were included and graded for their methodological quality ("fair" quality: 79.4%). The most used assessment method (44...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239986/practical-model-of-low-volume-paddling-based-sprint-interval-training-improves-aerobic-and-anaerobic-performances-in-professional-female-canoe-polo-athletes
#3
Mohsen Sheykhlouvand, Erfan Khalili, Mohammadali Gharaat, Hamid Arazi, Mousa Khalafi, Bahman Tarverdizadeh
Brief, intense exercise training employing running and cycling as exercise interventions may induce aerobic and anaerobic adaptations in athletes from wide range of sports. However, this has not been studied extensively for those sports in which the upper-body is predominantly involved. Our purpose was to examine the effects of kayak paddling-based sprint interval training (SIT) on cardiorespiratory fitness and anaerobic performance. 16 professional female canoe polo athletes (age = 27.6 ± 1.9 years; height = 165...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29239985/training-load-physical-performance-biochemical-markers-and-psychological-stress-during-a-short-preparatory-period-in-brazilian-elite-male-volleyball-players
#4
Thiago A G Horta, Maurício G Bara Filho, Danilo R Coimbra, R Miranda, Francisco Z Werneck
The aim of this study was to assess the relationship between training load (TL) and physical performance, biochemical markers, and psychological stress during a short preparatory period (PP) in Brazilian elite male volleyball players. Twelve volleyball players from a team competing in the Brazilian Men's Volleyball Super League were enrolled (26.9 ± 4.6 years). Countermovement Jump (CMJ), Creatine Kinase (CK), Testosterone (T), Cortisol (Cr), T/Cr ratio, and Recovery and Stress Questionnaire for Athletes (RESTQ-Sport) were collected at baseline, after 2, 4, and 6 week...
December 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29238242/heart-rate-variability-is-a-moderating-factor-in-the-workload-injury-relationship-of-competitive-crossfit%C3%A2-athletes
#5
Sean Williams, Thomas Booton, Matthew Watson, Daniel Rowland, Marco Altini
Heart rate variability (HRV) is a popular tool for monitoring training adaptation and readiness in athletes, but it also has the potential to indicate early signs of somatic tissue overload prior to the onset of pain or fully developed injury. Therefore, the aim of this study was to investigate the interaction between HRV, workloads, and risk of overuse problems in competitive CrossFit™ athletes. Daily resting HRV and workloads (duration × session-RPE) were recorded in six competitive CrossFit™ athletes across a 16 week period...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29237356/the-influence-of-injury-definition-on-injury-burden-in-pre-professional-ballet-and-contemporary-dancers
#6
Sarah J Kenny, Luz Palacios-Derflingher, Jackie L Whittaker, Carolyn A Emery
Study Design Cohort study. Background Multiple operational definitions of injury exist in dance research. The influence that these different injury definitions have on epidemiological estimations of injury burden among dancers warrants investigation. Objective To describe the influence of injury definition on injury prevalence, incidence, and severity in pre-professional ballet and contemporary dancers. Methods Dancers registered in full-time pre-professional ballet [n=85, 77 females, median age 15-years (range 11-19)] and contemporary [n=60, 58 females, median age 19-years (range 17-30)] training completed weekly online questionnaires (modified Oslo Sports Trauma Research Centre's Questionnaire on Health Problems) using three injury definitions: (1) time-loss (unable to complete ≥1 class/rehearsal/performance ≥1 day(s) beyond onset); (2) medical attention; (3) any complaint...
December 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29234919/-soft-skills-somewhat-different-doping
#7
REVIEW
H J Heppner
Doping actually means the taking of illegal substances or the use of forbidden methods to increase or maintain performance. Diseases associated with age and functional decline can lead to constraints in the activities of daily living and this leads to loss of autonomy; therefore, doping in its different variations is used to try to achieve performance, which would not otherwise be possible. A somewhat different method is soft skills, i.e. personal, social and methodological competences, which are adopted to remain fit with the help of selection and compensation...
December 12, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/29233177/influences-of-perfectionism-and-motivational-climate-on-attitudes-towards-doping-among-korean-national-athletes-a-cross-sectional-study
#8
Moonjung Bae, Jungjoong Yoon, Hyunyong Kang, Taegyu Kim
BACKGROUND: The motives for elite athletes to dope are related primarily to maintaining and improving their physical performance. Especially, elite athletes training to compete in the Olympics may feel unique situational pressure, which may in turn induce powerful motivation for doping and predict doping behavior. This study aimed to investigate possible factors associated with attitudes towards doping in Korean national athletes who competed in the Rio 2016 Olympic Games. METHODS: A total of 198 athletes (95 female, 103 male) completed the questionnaire, which covered demographic information, doping-related experiences, Performance Enhancement Attitude Scale (PEAS), Perfectionism in Sports Scale (PSS; coach's criticism, concern over mistakes, and personal standards), and Perceived Motivational Climate in Sport Questionnaire-2 (PMCSQ-2; ego-involving and task-involving climates)...
December 12, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/29228408/-biomechanical-evaluation-of-rehabilitation-after-surgical-repair-of-achilles-tendon-ruptures
#9
Marlene Mauch, Markus Ulrich, Xaver Kaelin, Bernhard Segesser, Jochen Paul
Background Muscles and tendons are subjected to a high level of stress in everyday life and sports. This often leads to injuries and is associated with training failure and reduced performance as well as with high costs for treatment and rehabilitation. Fast and successful treatment is therefore very important, both from an athletic and economic point of view. This study aims to demonstrate the relevance of biomechanical procedures for the objective monitoring of rehabilitation. At the same time, the results are to be used to establish progress and evaluation criteria for an efficient and controlled rehabilitation...
December 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29226382/substantial-injuries-influence-ranking-position-in-young-elite-athletes-of-athletics-cross-country-skiing-orienteering
#10
Philip von Rosen, Annette Heijne
The relationship between injury and performance in young athletes is scarcely studied. The aim of this study was therefore to explore the association between injury prevalence and ranking position among adolescent elite athletes. 162 male and female adolescent elite athletes (age range 15-19), competing in athletics (n=59), cross-country skiing (n=66) and orienteering (n=37), were monitored weekly over 22-47 weeks using a web-based injury questionnaire. Ranking lists were collected. A significant (p=.003) difference was found in the seasonal substantial injury prevalence across the ranked athletes over the season, where the top-ranked (median 3...
December 11, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29226349/what-do-we-know-about-coaching-in-medical-education-a-literature-review
#11
REVIEW
Ben Lovell
CONTEXT: Coaching has been employed successfully in the competitive sports, professional music, and business and corporate worlds. It is now emerging as a training modality in medical education. OBJECTIVES: This paper reviews the current evidence on coaching strategies for doctors and medical students. METHODS: An applied literature search was conducted in PubMed, MEDLINE and Web of Science. Predetermined definitions of coaching interventions and their evaluations were used to narrow 993 papers down to 21, which were included in the final review...
December 11, 2017: Medical Education
https://www.readbyqxmd.com/read/29222606/hypothalamic-pituitary-adrenal-hpa-axis-functioning-in-overtraining-syndrome-findings-from-endocrine-and-metabolic-responses-on-overtraining-syndrome-eros-eros-hpa-axis
#12
Flavio A Cadegiani, Claudio E Kater
BACKGROUND: Overtraining syndrome (OTS) results from excessive training load without adequate recovery and leads to decreased performance and fatigue. The pathophysiology of OTS in athletes is not fully understood, which makes accurate diagnosis difficult. Previous studies indicate that alterations in the hypothalamus-pituitary-adrenal (HPA) axis may be responsible for OTS; however, the data is not conclusive. This study aimed to compare, through gold standard and exercise-independent tests, the response of the HPA axis in OTS-affected athletes (OTS group) to healthy physically active subjects (ATL group) and healthy non-active subjects (NCS group)...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29219896/an-analysis-of-training-loads-in-elite-under-18-australian-rule-football-players
#13
Emily E Cust, Nathan Elsworthy, Sam Robertson
Differences in training loads (TL) between under 18 (U18) Australian Rules football (AF) State Academy selected and non-selected players were investigated. Players were categorised relating to their highest representative level; State Academy selected (n = 9) and TAC Cup level players (n = 38). Data were obtained from an online training-monitoring tool implemented to collect player training and match information across a 20 - week period during the regular season. Parameters modelled included AF skills, strength, and other sport training sessions...
December 6, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29219885/displaced-clavicle-fractures-in-cyclists-return-to-athletic-activity-after-anteroinferior-plate-fixation
#14
Ven Denise J C van der, Tim K Timmers, Ivo A M J Broeders, Olden G D J van
BACKGROUND: One of the most commonly observed injuries in cycling is fracture of the clavicle. Nevertheless, there is limited literature available on clinical outcomes after plate fixation of clavicle fractures in cyclists, rehabilitation protocols, and the time to return to sports. PURPOSE: The aim of this study was to evaluate the functional outcome, complications, and return to athletic activity at short-term follow-up after surgical repair. STUDY DESIGN: Case series...
December 1, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29216703/-effect-of-sports-training-in-angular-compartment-of-the-lower-limbs-in-children-footballers-aged-11-to-12-years-old
#15
J Burboa, M Bahamonde, M Inostroza, P Lillo, M Barahona, M Palet, J Hinzpeter
Anterior Cruciate Ligament (ACL) injury is an important cause of days lost in athletes. Most ACL injuries are non-contact and are associated with biomechanical risk factors that increase tension in the ACL: increased knee valgus (KV) and hip flexion (HF) and decreased flexion of knee (KF). Muscle around the knee contributes to knee stability, so fatigue produced by exercise could alter knee balance, increasing LCA tension. The aim of the study is to determine the angular behavior before and after a physical load for CF, RR and RV in children born in 2002-2003...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29215442/an-anatomic-morphological-study-of-occipital-spurs-in-human-skulls
#16
Monika Srivastava, Adil Asghar, Nitya Nand Srivastava, Nandkishore Gupta, Anuj Jain, Jayant Verma
Occipital spurs are quite common; however, they are also the source of frequent discomfort to the patients. Their role has been implicated in causation of pain at the base of skull, which may extend to shoulder limiting the movement of the shoulder and neck. The present was carried out to find out the prevalence of occipital spur in human skull and to find out the anatomic morphological characteristics of occipital spur. A total of 30 cadaveric skulls were examined in the Department of Anatomy, Uttar Pradesh University of Medical Sciences, for the presence of occipital spur...
December 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29214319/electrocardiographic-findings-in-national-basketball-association-athletes
#17
Marc P Waase, R Kannan Mutharasan, William Whang, Marco R DiTullio, John P DiFiori, Lisa Callahan, Jimmie Mancell, Dermot Phelan, Allan Schwartz, Shunichi Homma, David J Engel
Importance: While it is known that long-term intensive athletic training is associated with cardiac structural changes that can be reflected on surface electrocardiograms (ECGs), there is a paucity of sport-specific ECG data. This study seeks to clarify the applicability of existing athlete ECG interpretation criteria to elite basketball players, an athlete group shown to develop significant athletic cardiac remodeling. Objective: To generate normative ECG data for National Basketball Association (NBA) athletes and to assess the accuracy of athlete ECG interpretation criteria in this population...
December 6, 2017: JAMA Cardiology
https://www.readbyqxmd.com/read/29212413/a-lower-extremity-strength-based-profile-of-ncaa-division-i-women-s-basketball-and-gymnastics-athletes-implications-for-knee-joint-injury-risk-assessment
#18
Brennan J Thompson, Curtis S Cazier, Eadric Bressel, Dennis G Dolny
This study aimed to provide a comprehensive strength-based physiological profile of women's NCAA Division I basketball and gymnastic athletes; and to make sport-specific comparisons for various strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings-to-quadriceps ratios, H:Q) was used to elucidate vulnerabilities in these at-risk female athletes. Fourteen NCAA Division I women's basketball and 13 gymnastics athletes performed strength testing of the knee extensors and flexors...
December 7, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29210775/isometric-exercise-to-reduce-pain-in-patellar-tendinopathy-in-season-is-it-effective-on-the-road
#19
Ebonie Rio, Craig Purdam, Michael Girdwood, Jill Cook
OBJECTIVE: To investigate the effectiveness of an isometric squat exercise using a portable belt, on patellar tendon pain and function, in athletes during their competitive season. DESIGN: Case series with no requirements to change any aspect of games or training. The object of this pragmatic study was to investigate this intervention in addition to "usual management." A control or sham intervention was considered unacceptable to teams. SETTING: In-season...
November 27, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29209229/proposal-of-a-global-training-load-measure-predicting-match-performance-in-an-elite-team-sport
#20
Brendan H Lazarus, Andrew M Stewart, Kevin M White, Amber E Rowell, Alireza Esmaeili, William G Hopkins, Robert J Aughey
Aim: The use of external and internal load is an important aspect of monitoring systems in team sport. The aim of this study was to validate a novel measure of training load by quantifying the training-performance relationship of elite Australian footballers. Methods: The primary training measure of each of 36 players was weekly load derived from a weighted combination of Global Positioning System (GPS) data and perceived wellness over a 24-week season. Smoothed loads representing an exponentially weighted rolling average were derived with decay time constants of 1...
2017: Frontiers in Physiology
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